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| Commodity | 2005 | 2007 | 2008 | 2010 | 2011 |
| Railway/tramway sleepers (cross-ties) of wood, not impregnated | | $8,611 | | | |
| Railway/tramway sleepers (cross-ties) of wood, other than those not impregn ... | $263,137 | | $47,959 | $6,847 | $10,119 |
| Total | $263,137 | $8,611 | $47,959 | $6,847 | $10,119 |
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